[PDF] Top 20 J. Aerosp. Technol. Manag. vol.8 número3

... The Korea Aerospace Research Institute (KARI) has completed Phase 1 of the Program in 2004, with the development of a 50 m long unmanned airship (VIA 50). his airship is able to achie[r] ... See full document

... high frequency components, the blur artifact identification is based on the comparison of the image against itself, but after filtering the high frequencies; the similarity degree of the images is directly proportional ... See full document

... hese 3 loops interact among themselves and are inluenced by a high Human Resources attrition rate, denoting 2 conlicting concerns to the FTO: (1) performing FT campaigns; and (2) transferring knowledge among the teams ... See full document

... High-performance composite materials like those using aramid iber are generally dificult to recycle due to their properties and the dificulty for the separation of the components, mak[r] ... See full document

... As mentioned before, the image analysis for porosity identification was done by using optical microscopy and Image J software. The analysis is shown in Fig. 16. Given a gray scale ranging from 0 (completely black) ... See full document

... Duplex stainless steels (DSS) are characterized ideally by equal amounts of ferrite and austenite, which provides increased mechanical resistance (680 to 880 MPa ultimate tensile strength) due to the ine grain size, ... See full document

... ABSTRACT: The experimental results of speciic heat capacity of 2 plastic bonded explosives formulations based on 1,3,5-trinitroperhydro-1,3,5-triazine, using differential scanning ca[r] ... See full document

... When the vehicle is in the launch pad, many activities are performed, such as testing the DC communication with the actuators and sensors, testing the pyrotechnic valves, checking of the destruction system, and loading ... See full document

... In the improved method, the classic TLC method is complementary by an adaptive compensation control law, and this is designed according to the estimated unknown parameters and state v[r] ... See full document

... Digital Particle Image Velocimetry System (DPIV) measure- ments were taken using a Dantec PIV system (Dantec Company 2000), incorporating a pair of pulsed Nd:YAG lasers with a maximum energy input of 350 mJ per pulse, in ... See full document

... For lying qualities requirements compliance purposes, the pilot controls inputs are obtained in the frequency range from values lower than the frequency bandwidth ( ω BW ), usually ha[r] ... See full document

... Leishman team conducted a series of experiments (Bi and Leishman 1990; Leishman and Bi 1990) about rotor-fuselage interaction phenomenon; the outlook of fuselage model they used is similar to the actual helicopter ... See full document

... A numerical method was proposed in this paper to predict the stability derivatives of a NACA 63-415 airfoil under pitching and plunging oscillations and to study the efect of one of th[r] ... See full document

... he present investigation intends to report some experiences for computing aeroelastic damping trends as a function of light speed, based on an output-only modal parameter extraction t[r] ... See full document

... (Saha et al. 2015), though resulting in larger elements. h e loading ef ect of the substrate is shown in detail in Fig. 2, by comparing the transmittance ef ects between the use of vacuum and the Arlon product. It can be ... See full document

... where: x k , F[M k ], z k and H[M k ] are, respectively, the state vector, state transition matrix, measurement vector and observation matrix at time k. M k represents the light model in efect at time k and can be any ... See full document

... In the recognition of micro-motion, the CLEAN algorithm (Caner 2012) can be used to extract the coordinate information of the peak value of the image to get the coordinate information of the point trace. he scattering ... See full document

... he inluence of aerodynamic forces on the large lexibility of a wing was examined experimentally in a wind tunnel using an elasto-lexible wing of a pre-stressed membrane by Béguin and [r] ... See full document

... he present study resulted in four individual cognitive maps and a congregated map that allowed identifying the diiculties in requirements elicitation process for building complex syst[r] ... See full document

... to close the RANS for the turbulence low. Also, no-slip and Riemann invariant conditions are applied on the solid surface and the far ields for the boundary conditions, respectively. An ideal gas equation is employed to ... See full document